It is impossible to undervolt the GPU on a Ryzen AI 9 HX 370.
When trying to enter the command sudo ryzenadj --set-coall=0xFFFDD --set-cogfx=0xFFFDD, the error appears:
"sucessfully set coall to 1048541
set_cogfx is not supported on this family"
4 Replies
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Adjust power management settings for Ryzen APUs. Contribute to FlyGoat/RyzenAdj development by creating an account on GitHub.
Solution
Strix Point/Strix Halo is unsupported territory
You can try smokeless but again, unsupported territory
and again, on such a high-powered APU there's little point in undervolting anyways
Alternatively you can use LACT, which is gpu only
Dude, I lowered the CPU by 35 mV and now I can play demanding games at 15 watts instead of 20. Even such a small undervoltage gave a huge boost to performance at low watts.
Before these manipulations, the performance of the Ryzen AI 9 HX 370 was on par with a custom APU from Steam Deck, and I'm not exaggerating.
Unfortunately, LACT also doesn't have the ability to change GPU voltage. Thanks for the info